[binary] Exploiting Null Derefs and Windows Type COM-fusion

Null-dereferences might not be too exploitable on a lot of systems, what about the handling of a null-dereference. We cover a great Project Zero post on the topic, then look at a type confusion in Windows COM, a Nintendo buffer overflow, and several memory corruptions in git, highlighting their unique primitives and potential exploitability. Links and vulnerability summaries for this episode are available at: https://dayzerosec.com/podcast/182.html [00:00:00] Introduction [00:01:14] Spot the Vuln - Resolution [00:03:38] Exploiting null-dereferences in the Linux kernel [00:15:31] Type confusion in Windows COM+ Event System Service [CVE-2022-41033] [00:22:57] Information and PoC about the ENLBufferPwn vulnerability [00:28:11] Git security vulnerabilities announced The DAY[0] Podcast episodes are streamed live on Twitch twice a week:  -- Mondays at 3:00pm Eastern (Boston) we focus on web and more bug bounty style vulnerabilities  -- Tuesdays at 7:00pm Eastern (Boston) we focus on lower-level vulnerabilities  and exploits. We are also available on the usual podcast platforms:  -- Apple Podcasts: https://podcasts.apple.com/us/podcast/id1484046063  -- Spotify: https://open.spotify.com/show/4NKCxk8aPEuEFuHsEQ9Tdt  -- Google Podcasts: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hMTIxYTI0L3BvZGNhc3QvcnNz  -- Other audio platforms can be found at https://anchor.fm/dayzerosec You can also join our discord: https://discord.gg/daTxTK9